INSULATION RESISTANCE MEASURING APPARATUS AND METHOD THEREOF

The present invention relates to an insulation resistance measurement apparatus and method of a battery, and the insulation resistance measurement apparatus according to an embodiment of the present invention includes a first resistance unit having one end connected to an anode of a battery and the other end connected to a ground, and optionally having a first resistance value or a second resistance value greater than the first resistance value according to control; a second resistance unit having one end connected to a cathode of the battery and the other end connected to the ground, and optionally having a third resistance value or a fourth resistance value greater than the third resistance value according to control; a voltage measurement unit configured to measure a voltage related to both ends of the first resistance unit or the second resistance unit; and an insulation resistance calculation unit configured to calculate a first insulation resistance value between the anode of the battery and the ground and a second insulation resistance value between the cathode of the battery and the ground by using the first to fourth resistance values and a voltage measured by the voltage measurement unit.